ACDelco Heavy Duty Flooded Battery

ACDelco stands for quality. Get the performance you need with ACDelco products. ACDelco Heavy Duty Flooded Maintenance Free Batteries have a Calcium-Calcium plate construction to resist vibration, shock, and heat. ACDelco 4D and 8D Heavy Duty Flooded Maintenance Free Batteries offer reliable ACDelco quality at an economical price. These batteries have the same Calcium-Calcium plate technology used on ACDelco automotive products and plates designed to withstand longer running applications. These batteries have center line terminals which allow for the greatest installation versatility. Permanently sealed covers and specially designed grid offer excellent vibration resistance. ACDelco products are developed to exceed your performance expectations and deliver the durability you expect.


• Sealed cover protects against leaks and provides maintenance-free performance without having to add water.
• Robust internal fusion weld to ensure longer battery life.
• ACDelco’s negative paste resists flaking to improve overall performance and increase life.
• Calcium alloy increases cycle life, improves performance, and reduces water consumption.
• Robust envelope separator resists punctures and improves acid circulation, allowing the battery to remain cooler and extending battery life.
• Optimized for conductivity, ACDelco’s framed positive grid technology is vibration resistant and offers superior cycling performance.
• Superior epoxy element bonding promotes long-lasting performance in high vibration environments.


• Recharge battery after each use.
• Use a taper type charger set at 15.0 volts. Taper chargers help avoid overcharge by reducing the charge rate as the battery nears full charge. Follow instructions provided with the charger.
• Determine the charging time that will be required. Check the built-in indicator and charge the battery for at least the number of hours shown in the charging table (located in “Charging Instructions” section). If the green ball is not visible in the indicator after charging, tap lightly on top to dislodge trapped air bubbles that might keep the green ball from floating into view. For the most accurate results allow the battery to rest for 12 hours then measure battery voltage, 12.8 volts is fully charged.
• NOTE: A more definite charging time can be set if an accurate voltmeter is available for reading open circuit voltage.
• DO NOT leave a battery connected to a battery charger after the battery is fully charged. Inspect battery every 2 hours when charging.
• Keep battery in a cool place when storing for long periods (make sure battery is fully charged – a discharged battery’s electrolyte can freeze).
• Keep battery terminals clean and free of corrosion. To remove corrosion from terminals, use a terminal brush.
• For maximum battery life where electrical requirements are high, separate starting and running batteries are recommended.